<!DOCTYPE html> 
<html lang="zh-CN"> 
<head>
    <meta charset="UTF-8">
    <meta name="keywords" content="关键词信息"> 
    <meta name="description" content="描述信息"> 
    <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title> 
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        li{
            list-style: none;
        }
        a{
            text-decoration: none;
            color: black;
        }
    </style>
</head>
<body>
    <h1>我是a分支页面</h1>

    <h1>我是b修改的内容</h1>

    <h1>我是a修改的内容</h1>

</body>
</html>